On Thu, 17 Jan 2008, Andi Vajda wrote:
On Thu, 17 Jan 2008, anurag uniyal wrote:
I have a custom parser which is created and used to parse queries at
several places. Instead of calling finalize each time, I have wrapped my
custom parser in a python class and keep a ref to it, delegating all calls
and it works well, without any weakrefs.
Do you think such behaviour is correct and please tell if it can create any
problems?
This looks like it could work. There are caveats with using python __del__()
methods and objects involved in cycles. See 'garbage' list docs [1].
It looks like I spoke too fast. When returning an object to Java such as a
custom token stream in an analyzer's tokenStream() method, if the finalizer
wrapper is returned, a type error might be raised. If the wrappee is
returned, then it might get finalized too soon if the wrapper is freed by
python when java is still using the wrappee.
Andi..
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